Home / 124,025.60-186,038.40-74,259.20

Finding the Fourth Proportional to 124,025.60, 186,038.40 and 74,259.20

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Solution

The fourth proportional to 124,025.60, 186,038.40 and 74,259.20 is: 111,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,025.60 : 186,038.40 = 74,259.20 : x
  2. Step 2: Convert to fraction form
    124,025.60/186,038.40 = 74,259.20/x
  3. Step 3: Cross multiply
    124,025.60x = 186,038.40 × 74,259.20
  4. Step 4: Simplify right side
    124,025.60x = 13,815,062,753.28
  5. Step 5: Solve for x
    x = 13,815,062,753.28/124,025.60
  6. Step 6: Final answer
    x = 111,388.80

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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.