Home / 98,863.16-136,440.92-56,428.07

Finding the Fourth Proportional to 98,863.16, 136,440.92 and 56,428.07

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Solution

The fourth proportional to 98,863.16, 136,440.92 and 56,428.07 is: 77,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,863.16 : 136,440.92 = 56,428.07 : x
  2. Step 2: Convert to fraction form
    98,863.16/136,440.92 = 56,428.07/x
  3. Step 3: Cross multiply
    98,863.16x = 136,440.92 × 56,428.07
  4. Step 4: Simplify right side
    98,863.16x = 7,699,097,243.49
  5. Step 5: Solve for x
    x = 7,699,097,243.49/98,863.16
  6. Step 6: Final answer
    x = 77,876.31

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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.