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Finding the Fourth Proportional to 145,533.60, 218,300.40 and 75,434.40

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Solution

The fourth proportional to 145,533.60, 218,300.40 and 75,434.40 is: 113,151.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,533.60 : 218,300.40 = 75,434.40 : x
  2. Step 2: Convert to fraction form
    145,533.60/218,300.40 = 75,434.40/x
  3. Step 3: Cross multiply
    145,533.60x = 218,300.40 × 75,434.40
  4. Step 4: Simplify right side
    145,533.60x = 16,467,359,693.76
  5. Step 5: Solve for x
    x = 16,467,359,693.76/145,533.60
  6. Step 6: Final answer
    x = 113,151.60

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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.