Home / 124,005.60-186,008.40-74,239.20

Finding the Fourth Proportional to 124,005.60, 186,008.40 and 74,239.20

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Solution

The fourth proportional to 124,005.60, 186,008.40 and 74,239.20 is: 111,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,005.60 : 186,008.40 = 74,239.20 : x
  2. Step 2: Convert to fraction form
    124,005.60/186,008.40 = 74,239.20/x
  3. Step 3: Cross multiply
    124,005.60x = 186,008.40 × 74,239.20
  4. Step 4: Simplify right side
    124,005.60x = 13,809,114,809.28
  5. Step 5: Solve for x
    x = 13,809,114,809.28/124,005.60
  6. Step 6: Final answer
    x = 111,358.80

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1.5x scale

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.