Home / 142,160.80-212,960.40-92,275.60

Finding the Fourth Proportional to 142,160.80, 212,960.40 and 92,275.60

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Solution

The fourth proportional to 142,160.80, 212,960.40 and 92,275.60 is: 138,231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,160.80 : 212,960.40 = 92,275.60 : x
  2. Step 2: Convert to fraction form
    142,160.80/212,960.40 = 92,275.60/x
  3. Step 3: Cross multiply
    142,160.80x = 212,960.40 × 92,275.60
  4. Step 4: Simplify right side
    142,160.80x = 19,651,048,686.24
  5. Step 5: Solve for x
    x = 19,651,048,686.24/142,160.80
  6. Step 6: Final answer
    x = 138,231.13

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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.