Home / 113,029.04-155,980.68-62,728.16

Finding the Fourth Proportional to 113,029.04, 155,980.68 and 62,728.16

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Solution

The fourth proportional to 113,029.04, 155,980.68 and 62,728.16 is: 86,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,029.04 : 155,980.68 = 62,728.16 : x
  2. Step 2: Convert to fraction form
    113,029.04/155,980.68 = 62,728.16/x
  3. Step 3: Cross multiply
    113,029.04x = 155,980.68 × 62,728.16
  4. Step 4: Simplify right side
    113,029.04x = 9,784,381,051.95
  5. Step 5: Solve for x
    x = 9,784,381,051.95/113,029.04
  6. Step 6: Final answer
    x = 86,565.20

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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.