Home / 134,528.50-185,649.33-77,972.68

Finding the Fourth Proportional to 134,528.50, 185,649.33 and 77,972.68

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Solution

The fourth proportional to 134,528.50, 185,649.33 and 77,972.68 is: 107,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,528.50 : 185,649.33 = 77,972.68 : x
  2. Step 2: Convert to fraction form
    134,528.50/185,649.33 = 77,972.68/x
  3. Step 3: Cross multiply
    134,528.50x = 185,649.33 × 77,972.68
  4. Step 4: Simplify right side
    134,528.50x = 14,475,575,800.30
  5. Step 5: Solve for x
    x = 14,475,575,800.30/134,528.50
  6. Step 6: Final answer
    x = 107,602.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.