Home / 127,715.29-176,240.17-70,343.45

Finding the Fourth Proportional to 127,715.29, 176,240.17 and 70,343.45

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Solution

The fourth proportional to 127,715.29, 176,240.17 and 70,343.45 is: 97,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,715.29 : 176,240.17 = 70,343.45 : x
  2. Step 2: Convert to fraction form
    127,715.29/176,240.17 = 70,343.45/x
  3. Step 3: Cross multiply
    127,715.29x = 176,240.17 × 70,343.45
  4. Step 4: Simplify right side
    127,715.29x = 12,397,340,705.19
  5. Step 5: Solve for x
    x = 12,397,340,705.19/127,715.29
  6. Step 6: Final answer
    x = 97,070.14

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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.