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Finding the Fourth Proportional to 158,570.08, 218,941.51 and 102,079.86

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Solution

The fourth proportional to 158,570.08, 218,941.51 and 102,079.86 is: 140,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,570.08 : 218,941.51 = 102,079.86 : x
  2. Step 2: Convert to fraction form
    158,570.08/218,941.51 = 102,079.86/x
  3. Step 3: Cross multiply
    158,570.08x = 218,941.51 × 102,079.86
  4. Step 4: Simplify right side
    158,570.08x = 22,349,518,688.99
  5. Step 5: Solve for x
    x = 22,349,518,688.99/158,570.08
  6. Step 6: Final answer
    x = 140,944.11

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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.