Home / 147,199.90-202,931.78-99,377.50

Finding the Fourth Proportional to 147,199.90, 202,931.78 and 99,377.50

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Solution

The fourth proportional to 147,199.90, 202,931.78 and 99,377.50 is: 137,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,199.90 : 202,931.78 = 99,377.50 : x
  2. Step 2: Convert to fraction form
    147,199.90/202,931.78 = 99,377.50/x
  3. Step 3: Cross multiply
    147,199.90x = 202,931.78 × 99,377.50
  4. Step 4: Simplify right side
    147,199.90x = 20,166,852,966.95
  5. Step 5: Solve for x
    x = 20,166,852,966.95/147,199.90
  6. Step 6: Final answer
    x = 137,003.17

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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.