Home / 163,312.12-225,353.28-91,700

Finding the Fourth Proportional to 163,312.12, 225,353.28 and 91,700

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Solution

The fourth proportional to 163,312.12, 225,353.28 and 91,700 is: 126,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,312.12 : 225,353.28 = 91,700 : x
  2. Step 2: Convert to fraction form
    163,312.12/225,353.28 = 91,700/x
  3. Step 3: Cross multiply
    163,312.12x = 225,353.28 × 91,700
  4. Step 4: Simplify right side
    163,312.12x = 20,664,895,776
  5. Step 5: Solve for x
    x = 20,664,895,776/163,312.12
  6. Step 6: Final answer
    x = 126,536.20

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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.