Home / 124,740.30-172,141.80-71,025.36

Finding the Fourth Proportional to 124,740.30, 172,141.80 and 71,025.36

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Solution

The fourth proportional to 124,740.30, 172,141.80 and 71,025.36 is: 98,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,740.30 : 172,141.80 = 71,025.36 : x
  2. Step 2: Convert to fraction form
    124,740.30/172,141.80 = 71,025.36/x
  3. Step 3: Cross multiply
    124,740.30x = 172,141.80 × 71,025.36
  4. Step 4: Simplify right side
    124,740.30x = 12,226,433,316.05
  5. Step 5: Solve for x
    x = 12,226,433,316.05/124,740.30
  6. Step 6: Final answer
    x = 98,015.10

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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.