Home / 129,743.68-179,045.76-70,127.68

Finding the Fourth Proportional to 129,743.68, 179,045.76 and 70,127.68

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Solution

The fourth proportional to 129,743.68, 179,045.76 and 70,127.68 is: 96,775.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,743.68 : 179,045.76 = 70,127.68 : x
  2. Step 2: Convert to fraction form
    129,743.68/179,045.76 = 70,127.68/x
  3. Step 3: Cross multiply
    129,743.68x = 179,045.76 × 70,127.68
  4. Step 4: Simplify right side
    129,743.68x = 12,556,063,762.64
  5. Step 5: Solve for x
    x = 12,556,063,762.64/129,743.68
  6. Step 6: Final answer
    x = 96,775.92

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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.