Home / 116,458.16-160,715.76-71,143.52

Finding the Fourth Proportional to 116,458.16, 160,715.76 and 71,143.52

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Solution

The fourth proportional to 116,458.16, 160,715.76 and 71,143.52 is: 98,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,458.16 : 160,715.76 = 71,143.52 : x
  2. Step 2: Convert to fraction form
    116,458.16/160,715.76 = 71,143.52/x
  3. Step 3: Cross multiply
    116,458.16x = 160,715.76 × 71,143.52
  4. Step 4: Simplify right side
    116,458.16x = 11,433,884,885.88
  5. Step 5: Solve for x
    x = 11,433,884,885.88/116,458.16
  6. Step 6: Final answer
    x = 98,180.20

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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.