Home / 130,724.86-180,400.31-74,136.24

Finding the Fourth Proportional to 130,724.86, 180,400.31 and 74,136.24

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Solution

The fourth proportional to 130,724.86, 180,400.31 and 74,136.24 is: 102,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,724.86 : 180,400.31 = 74,136.24 : x
  2. Step 2: Convert to fraction form
    130,724.86/180,400.31 = 74,136.24/x
  3. Step 3: Cross multiply
    130,724.86x = 180,400.31 × 74,136.24
  4. Step 4: Simplify right side
    130,724.86x = 13,374,200,678.23
  5. Step 5: Solve for x
    x = 13,374,200,678.23/130,724.86
  6. Step 6: Final answer
    x = 102,308.01

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1.5x scale

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.