Home / 127,281.40-175,644.88-70,689.16

Finding the Fourth Proportional to 127,281.40, 175,644.88 and 70,689.16

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Solution

The fourth proportional to 127,281.40, 175,644.88 and 70,689.16 is: 97,549.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,281.40 : 175,644.88 = 70,689.16 : x
  2. Step 2: Convert to fraction form
    127,281.40/175,644.88 = 70,689.16/x
  3. Step 3: Cross multiply
    127,281.40x = 175,644.88 × 70,689.16
  4. Step 4: Simplify right side
    127,281.40x = 12,416,189,025.50
  5. Step 5: Solve for x
    x = 12,416,189,025.50/127,281.40
  6. Step 6: Final answer
    x = 97,549.12

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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.