Home / 98,709.10-136,218.13-53,387.12

Finding the Fourth Proportional to 98,709.10, 136,218.13 and 53,387.12

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Solution

The fourth proportional to 98,709.10, 136,218.13 and 53,387.12 is: 73,674.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,709.10 : 136,218.13 = 53,387.12 : x
  2. Step 2: Convert to fraction form
    98,709.10/136,218.13 = 53,387.12/x
  3. Step 3: Cross multiply
    98,709.10x = 136,218.13 × 53,387.12
  4. Step 4: Simplify right side
    98,709.10x = 7,272,293,859.56
  5. Step 5: Solve for x
    x = 7,272,293,859.56/98,709.10
  6. Step 6: Final answer
    x = 73,674.00

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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.