Home / 98,999.81-136,607.27-56,561.07

Finding the Fourth Proportional to 98,999.81, 136,607.27 and 56,561.07

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Solution

The fourth proportional to 98,999.81, 136,607.27 and 56,561.07 is: 78,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,999.81 : 136,607.27 = 56,561.07 : x
  2. Step 2: Convert to fraction form
    98,999.81/136,607.27 = 56,561.07/x
  3. Step 3: Cross multiply
    98,999.81x = 136,607.27 × 56,561.07
  4. Step 4: Simplify right side
    98,999.81x = 7,726,653,078.17
  5. Step 5: Solve for x
    x = 7,726,653,078.17/98,999.81
  6. Step 6: Final answer
    x = 78,047.15

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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.