Home / 127,520.53-175,977.84-70,931.92

Finding the Fourth Proportional to 127,520.53, 175,977.84 and 70,931.92

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Solution

The fourth proportional to 127,520.53, 175,977.84 and 70,931.92 is: 97,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,520.53 : 175,977.84 = 70,931.92 : x
  2. Step 2: Convert to fraction form
    127,520.53/175,977.84 = 70,931.92/x
  3. Step 3: Cross multiply
    127,520.53x = 175,977.84 × 70,931.92
  4. Step 4: Simplify right side
    127,520.53x = 12,482,446,068.65
  5. Step 5: Solve for x
    x = 12,482,446,068.65/127,520.53
  6. Step 6: Final answer
    x = 97,885.78

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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.