Home / 129,011.30-177,649.90-119,602.34

Finding the Fourth Proportional to 129,011.30, 177,649.90 and 119,602.34

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Solution

The fourth proportional to 129,011.30, 177,649.90 and 119,602.34 is: 164,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,011.30 : 177,649.90 = 119,602.34 : x
  2. Step 2: Convert to fraction form
    129,011.30/177,649.90 = 119,602.34/x
  3. Step 3: Cross multiply
    129,011.30x = 177,649.90 × 119,602.34
  4. Step 4: Simplify right side
    129,011.30x = 21,247,343,740.77
  5. Step 5: Solve for x
    x = 21,247,343,740.77/129,011.30
  6. Step 6: Final answer
    x = 164,693.66

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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.