Home / 112,570.22-155,331.69-64,178.39

Finding the Fourth Proportional to 112,570.22, 155,331.69 and 64,178.39

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Solution

The fourth proportional to 112,570.22, 155,331.69 and 64,178.39 is: 88,557.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,570.22 : 155,331.69 = 64,178.39 : x
  2. Step 2: Convert to fraction form
    112,570.22/155,331.69 = 64,178.39/x
  3. Step 3: Cross multiply
    112,570.22x = 155,331.69 × 64,178.39
  4. Step 4: Simplify right side
    112,570.22x = 9,968,937,780.18
  5. Step 5: Solve for x
    x = 9,968,937,780.18/112,570.22
  6. Step 6: Final answer
    x = 88,557.50

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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.