Home / 176,138.25-243,070.80-100,688.37

Finding the Fourth Proportional to 176,138.25, 243,070.80 and 100,688.37

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Solution

The fourth proportional to 176,138.25, 243,070.80 and 100,688.37 is: 138,949.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,138.25 : 243,070.80 = 100,688.37 : x
  2. Step 2: Convert to fraction form
    176,138.25/243,070.80 = 100,688.37/x
  3. Step 3: Cross multiply
    176,138.25x = 243,070.80 × 100,688.37
  4. Step 4: Simplify right side
    176,138.25x = 24,474,402,646.60
  5. Step 5: Solve for x
    x = 24,474,402,646.60/176,138.25
  6. Step 6: Final answer
    x = 138,949.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.