Home / 180,947.40-249,708.78-99,275.10

Finding the Fourth Proportional to 180,947.40, 249,708.78 and 99,275.10

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Solution

The fourth proportional to 180,947.40, 249,708.78 and 99,275.10 is: 137,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,947.40 : 249,708.78 = 99,275.10 : x
  2. Step 2: Convert to fraction form
    180,947.40/249,708.78 = 99,275.10/x
  3. Step 3: Cross multiply
    180,947.40x = 249,708.78 × 99,275.10
  4. Step 4: Simplify right side
    180,947.40x = 24,789,864,105.38
  5. Step 5: Solve for x
    x = 24,789,864,105.38/180,947.40
  6. Step 6: Final answer
    x = 137,000.39

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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.