Home / 130,543.59-180,136.61-76,825.40

Finding the Fourth Proportional to 130,543.59, 180,136.61 and 76,825.40

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Solution

The fourth proportional to 130,543.59, 180,136.61 and 76,825.40 is: 106,011.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,543.59 : 180,136.61 = 76,825.40 : x
  2. Step 2: Convert to fraction form
    130,543.59/180,136.61 = 76,825.40/x
  3. Step 3: Cross multiply
    130,543.59x = 180,136.61 × 76,825.40
  4. Step 4: Simplify right side
    130,543.59x = 13,839,067,184.11
  5. Step 5: Solve for x
    x = 13,839,067,184.11/130,543.59
  6. Step 6: Final answer
    x = 106,011.08

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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.