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Finding the Fourth Proportional to 103,364.32, 142,643.64 and 60,373.84

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Solution

The fourth proportional to 103,364.32, 142,643.64 and 60,373.84 is: 83,316.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,364.32 : 142,643.64 = 60,373.84 : x
  2. Step 2: Convert to fraction form
    103,364.32/142,643.64 = 60,373.84/x
  3. Step 3: Cross multiply
    103,364.32x = 142,643.64 × 60,373.84
  4. Step 4: Simplify right side
    103,364.32x = 8,611,944,298.38
  5. Step 5: Solve for x
    x = 8,611,944,298.38/103,364.32
  6. Step 6: Final answer
    x = 83,316.41

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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.