Home / 113,681.04-156,861.72-63,380.40

Finding the Fourth Proportional to 113,681.04, 156,861.72 and 63,380.40

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Solution

The fourth proportional to 113,681.04, 156,861.72 and 63,380.40 is: 87,454.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,681.04 : 156,861.72 = 63,380.40 : x
  2. Step 2: Convert to fraction form
    113,681.04/156,861.72 = 63,380.40/x
  3. Step 3: Cross multiply
    113,681.04x = 156,861.72 × 63,380.40
  4. Step 4: Simplify right side
    113,681.04x = 9,941,958,558.29
  5. Step 5: Solve for x
    x = 9,941,958,558.29/113,681.04
  6. Step 6: Final answer
    x = 87,454.85

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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.