Home / 89,276.04-123,154.02-68,018.40

Finding the Fourth Proportional to 89,276.04, 123,154.02 and 68,018.40

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Solution

The fourth proportional to 89,276.04, 123,154.02 and 68,018.40 is: 93,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,276.04 : 123,154.02 = 68,018.40 : x
  2. Step 2: Convert to fraction form
    89,276.04/123,154.02 = 68,018.40/x
  3. Step 3: Cross multiply
    89,276.04x = 123,154.02 × 68,018.40
  4. Step 4: Simplify right side
    89,276.04x = 8,376,739,393.97
  5. Step 5: Solve for x
    x = 8,376,739,393.97/89,276.04
  6. Step 6: Final answer
    x = 93,829.65

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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.