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Finding the Fourth Proportional to 118,573.60, 177,869.76 and 39,688.12

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Solution

The fourth proportional to 118,573.60, 177,869.76 and 39,688.12 is: 59,535.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,573.60 : 177,869.76 = 39,688.12 : x
  2. Step 2: Convert to fraction form
    118,573.60/177,869.76 = 39,688.12/x
  3. Step 3: Cross multiply
    118,573.60x = 177,869.76 × 39,688.12
  4. Step 4: Simplify right side
    118,573.60x = 7,059,316,379.25
  5. Step 5: Solve for x
    x = 7,059,316,379.25/118,573.60
  6. Step 6: Final answer
    x = 59,535.31

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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.