Home / 130,841.12-180,629.33-88,045.64

Finding the Fourth Proportional to 130,841.12, 180,629.33 and 88,045.64

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Solution

The fourth proportional to 130,841.12, 180,629.33 and 88,045.64 is: 121,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,841.12 : 180,629.33 = 88,045.64 : x
  2. Step 2: Convert to fraction form
    130,841.12/180,629.33 = 88,045.64/x
  3. Step 3: Cross multiply
    130,841.12x = 180,629.33 × 88,045.64
  4. Step 4: Simplify right side
    130,841.12x = 15,903,624,279.59
  5. Step 5: Solve for x
    x = 15,903,624,279.59/130,841.12
  6. Step 6: Final answer
    x = 121,549.13

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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.