Home / 124,828.12-172,294.85-77,054.02

Finding the Fourth Proportional to 124,828.12, 172,294.85 and 77,054.02

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Solution

The fourth proportional to 124,828.12, 172,294.85 and 77,054.02 is: 106,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828.12 : 172,294.85 = 77,054.02 : x
  2. Step 2: Convert to fraction form
    124,828.12/172,294.85 = 77,054.02/x
  3. Step 3: Cross multiply
    124,828.12x = 172,294.85 × 77,054.02
  4. Step 4: Simplify right side
    124,828.12x = 13,276,010,146.27
  5. Step 5: Solve for x
    x = 13,276,010,146.27/124,828.12
  6. Step 6: Final answer
    x = 106,354.32

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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.