Home / 127,840.16-176,402.80-74,113.76

Finding the Fourth Proportional to 127,840.16, 176,402.80 and 74,113.76

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Solution

The fourth proportional to 127,840.16, 176,402.80 and 74,113.76 is: 102,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,840.16 : 176,402.80 = 74,113.76 : x
  2. Step 2: Convert to fraction form
    127,840.16/176,402.80 = 74,113.76/x
  3. Step 3: Cross multiply
    127,840.16x = 176,402.80 × 74,113.76
  4. Step 4: Simplify right side
    127,840.16x = 13,073,874,782.53
  5. Step 5: Solve for x
    x = 13,073,874,782.53/127,840.16
  6. Step 6: Final answer
    x = 102,267.35

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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.