Home / 127,140.51-175,462.10-70,551.88

Finding the Fourth Proportional to 127,140.51, 175,462.10 and 70,551.88

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Solution

The fourth proportional to 127,140.51, 175,462.10 and 70,551.88 is: 97,366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.51 : 175,462.10 = 70,551.88 : x
  2. Step 2: Convert to fraction form
    127,140.51/175,462.10 = 70,551.88/x
  3. Step 3: Cross multiply
    127,140.51x = 175,462.10 × 70,551.88
  4. Step 4: Simplify right side
    127,140.51x = 12,379,181,638.78
  5. Step 5: Solve for x
    x = 12,379,181,638.78/127,140.51
  6. Step 6: Final answer
    x = 97,366.15

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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.