Home / 128,113.47-176,795.93-71,524.85

Finding the Fourth Proportional to 128,113.47, 176,795.93 and 71,524.85

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Solution

The fourth proportional to 128,113.47, 176,795.93 and 71,524.85 is: 98,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,113.47 : 176,795.93 = 71,524.85 : x
  2. Step 2: Convert to fraction form
    128,113.47/176,795.93 = 71,524.85/x
  3. Step 3: Cross multiply
    128,113.47x = 176,795.93 × 71,524.85
  4. Step 4: Simplify right side
    128,113.47x = 12,645,301,668.69
  5. Step 5: Solve for x
    x = 12,645,301,668.69/128,113.47
  6. Step 6: Final answer
    x = 98,703.92

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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.