Home / 130,829.12-181,417.28-126,396.80

Finding the Fourth Proportional to 130,829.12, 181,417.28 and 126,396.80

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Solution

The fourth proportional to 130,829.12, 181,417.28 and 126,396.80 is: 175,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,829.12 : 181,417.28 = 126,396.80 : x
  2. Step 2: Convert to fraction form
    130,829.12/181,417.28 = 126,396.80/x
  3. Step 3: Cross multiply
    130,829.12x = 181,417.28 × 126,396.80
  4. Step 4: Simplify right side
    130,829.12x = 22,930,563,656.70
  5. Step 5: Solve for x
    x = 22,930,563,656.70/130,829.12
  6. Step 6: Final answer
    x = 175,271.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.