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Finding the Fourth Proportional to 176,138.57, 243,114.47 and 108,171.74

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Solution

The fourth proportional to 176,138.57, 243,114.47 and 108,171.74 is: 149,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,138.57 : 243,114.47 = 108,171.74 : x
  2. Step 2: Convert to fraction form
    176,138.57/243,114.47 = 108,171.74/x
  3. Step 3: Cross multiply
    176,138.57x = 243,114.47 × 108,171.74
  4. Step 4: Simplify right side
    176,138.57x = 26,298,113,482.65
  5. Step 5: Solve for x
    x = 26,298,113,482.65/176,138.57
  6. Step 6: Final answer
    x = 149,303.55

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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.