Home / 124,561,390.80-186,842,086.20-72,692,749.20

Finding the Fourth Proportional to 124,561,390.80, 186,842,086.20 and 72,692,749.20

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Solution

The fourth proportional to 124,561,390.80, 186,842,086.20 and 72,692,749.20 is: 109,039,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,561,390.80 : 186,842,086.20 = 72,692,749.20 : x
  2. Step 2: Convert to fraction form
    124,561,390.80/186,842,086.20 = 72,692,749.20/x
  3. Step 3: Cross multiply
    124,561,390.80x = 186,842,086.20 × 72,692,749.20
  4. Step 4: Simplify right side
    124,561,390.80x = 13,582,064,912,141,380
  5. Step 5: Solve for x
    x = 13,582,064,912,141,380/124,561,390.80
  6. Step 6: Final answer
    x = 109,039,123.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.