Home / 142,007.60-213,055.59-42,168.30

Finding the Fourth Proportional to 142,007.60, 213,055.59 and 42,168.30

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Solution

The fourth proportional to 142,007.60, 213,055.59 and 42,168.30 is: 63,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,007.60 : 213,055.59 = 42,168.30 : x
  2. Step 2: Convert to fraction form
    142,007.60/213,055.59 = 42,168.30/x
  3. Step 3: Cross multiply
    142,007.60x = 213,055.59 × 42,168.30
  4. Step 4: Simplify right side
    142,007.60x = 8,984,192,035.80
  5. Step 5: Solve for x
    x = 8,984,192,035.80/142,007.60
  6. Step 6: Final answer
    x = 63,265.57

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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.