Home / 99,038.17-148,555.51-91,324.30

Finding the Fourth Proportional to 99,038.17, 148,555.51 and 91,324.30

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Solution

The fourth proportional to 99,038.17, 148,555.51 and 91,324.30 is: 136,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,038.17 : 148,555.51 = 91,324.30 : x
  2. Step 2: Convert to fraction form
    99,038.17/148,555.51 = 91,324.30/x
  3. Step 3: Cross multiply
    99,038.17x = 148,555.51 × 91,324.30
  4. Step 4: Simplify right side
    99,038.17x = 13,566,727,961.89
  5. Step 5: Solve for x
    x = 13,566,727,961.89/99,038.17
  6. Step 6: Final answer
    x = 136,984.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.