Home / 142,384.72-213,628.27-66,550.80

Finding the Fourth Proportional to 142,384.72, 213,628.27 and 66,550.80

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Solution

The fourth proportional to 142,384.72, 213,628.27 and 66,550.80 is: 99,850.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,384.72 : 213,628.27 = 66,550.80 : x
  2. Step 2: Convert to fraction form
    142,384.72/213,628.27 = 66,550.80/x
  3. Step 3: Cross multiply
    142,384.72x = 213,628.27 × 66,550.80
  4. Step 4: Simplify right side
    142,384.72x = 14,217,132,271.12
  5. Step 5: Solve for x
    x = 14,217,132,271.12/142,384.72
  6. Step 6: Final answer
    x = 99,850.13

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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.