Home / 153,931.40-230,897.10-142,121.60

Finding the Fourth Proportional to 153,931.40, 230,897.10 and 142,121.60

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Solution

The fourth proportional to 153,931.40, 230,897.10 and 142,121.60 is: 213,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,931.40 : 230,897.10 = 142,121.60 : x
  2. Step 2: Convert to fraction form
    153,931.40/230,897.10 = 142,121.60/x
  3. Step 3: Cross multiply
    153,931.40x = 230,897.10 × 142,121.60
  4. Step 4: Simplify right side
    153,931.40x = 32,815,465,287.36
  5. Step 5: Solve for x
    x = 32,815,465,287.36/153,931.40
  6. Step 6: Final answer
    x = 213,182.40

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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.