Home / 107,102.45-147,952.17-99,130.84

Finding the Fourth Proportional to 107,102.45, 147,952.17 and 99,130.84

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Solution

The fourth proportional to 107,102.45, 147,952.17 and 99,130.84 is: 136,940.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,102.45 : 147,952.17 = 99,130.84 : x
  2. Step 2: Convert to fraction form
    107,102.45/147,952.17 = 99,130.84/x
  3. Step 3: Cross multiply
    107,102.45x = 147,952.17 × 99,130.84
  4. Step 4: Simplify right side
    107,102.45x = 14,666,622,522.04
  5. Step 5: Solve for x
    x = 14,666,622,522.04/107,102.45
  6. Step 6: Final answer
    x = 136,940.12

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1.5x scale

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.