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Finding the Fourth Proportional to 158,457, 237,388.86 and 79,478.76

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Solution

The fourth proportional to 158,457, 237,388.86 and 79,478.76 is: 119,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,457 : 237,388.86 = 79,478.76 : x
  2. Step 2: Convert to fraction form
    158,457/237,388.86 = 79,478.76/x
  3. Step 3: Cross multiply
    158,457x = 237,388.86 × 79,478.76
  4. Step 4: Simplify right side
    158,457x = 18,867,372,230.61
  5. Step 5: Solve for x
    x = 18,867,372,230.61/158,457
  6. Step 6: Final answer
    x = 119,069.35

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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.