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Finding the Fourth Proportional to 102,551.60, 153,827.40 and 90,801.20

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Solution

The fourth proportional to 102,551.60, 153,827.40 and 90,801.20 is: 136,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,551.60 : 153,827.40 = 90,801.20 : x
  2. Step 2: Convert to fraction form
    102,551.60/153,827.40 = 90,801.20/x
  3. Step 3: Cross multiply
    102,551.60x = 153,827.40 × 90,801.20
  4. Step 4: Simplify right side
    102,551.60x = 13,967,712,512.88
  5. Step 5: Solve for x
    x = 13,967,712,512.88/102,551.60
  6. Step 6: Final answer
    x = 136,201.80

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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.