Home / 142,290.81-213,444.57-53,545.08

Finding the Fourth Proportional to 142,290.81, 213,444.57 and 53,545.08

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Solution

The fourth proportional to 142,290.81, 213,444.57 and 53,545.08 is: 80,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,290.81 : 213,444.57 = 53,545.08 : x
  2. Step 2: Convert to fraction form
    142,290.81/213,444.57 = 53,545.08/x
  3. Step 3: Cross multiply
    142,290.81x = 213,444.57 × 53,545.08
  4. Step 4: Simplify right side
    142,290.81x = 11,428,906,576.22
  5. Step 5: Solve for x
    x = 11,428,906,576.22/142,290.81
  6. Step 6: Final answer
    x = 80,320.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.