Home / 124,311.12-171,547.80-67,721.28

Finding the Fourth Proportional to 124,311.12, 171,547.80 and 67,721.28

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Solution

The fourth proportional to 124,311.12, 171,547.80 and 67,721.28 is: 93,454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,311.12 : 171,547.80 = 67,721.28 : x
  2. Step 2: Convert to fraction form
    124,311.12/171,547.80 = 67,721.28/x
  3. Step 3: Cross multiply
    124,311.12x = 171,547.80 × 67,721.28
  4. Step 4: Simplify right side
    124,311.12x = 11,617,436,597.18
  5. Step 5: Solve for x
    x = 11,617,436,597.18/124,311.12
  6. Step 6: Final answer
    x = 93,454.52

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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.