Home / 157,421.40-236,132.10-133,801.80

Finding the Fourth Proportional to 157,421.40, 236,132.10 and 133,801.80

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Solution

The fourth proportional to 157,421.40, 236,132.10 and 133,801.80 is: 200,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,421.40 : 236,132.10 = 133,801.80 : x
  2. Step 2: Convert to fraction form
    157,421.40/236,132.10 = 133,801.80/x
  3. Step 3: Cross multiply
    157,421.40x = 236,132.10 × 133,801.80
  4. Step 4: Simplify right side
    157,421.40x = 31,594,900,017.78
  5. Step 5: Solve for x
    x = 31,594,900,017.78/157,421.40
  6. Step 6: Final answer
    x = 200,702.70

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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.