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Finding the Fourth Proportional to 141,730.60, 212,912.70 and 118,402.60

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Solution

The fourth proportional to 141,730.60, 212,912.70 and 118,402.60 is: 177,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,730.60 : 212,912.70 = 118,402.60 : x
  2. Step 2: Convert to fraction form
    141,730.60/212,912.70 = 118,402.60/x
  3. Step 3: Cross multiply
    141,730.60x = 212,912.70 × 118,402.60
  4. Step 4: Simplify right side
    141,730.60x = 25,209,417,253.02
  5. Step 5: Solve for x
    x = 25,209,417,253.02/141,730.60
  6. Step 6: Final answer
    x = 177,868.56

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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.