Home / 98,601.68-136,068.36-56,159.12

Finding the Fourth Proportional to 98,601.68, 136,068.36 and 56,159.12

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Solution

The fourth proportional to 98,601.68, 136,068.36 and 56,159.12 is: 77,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,601.68 : 136,068.36 = 56,159.12 : x
  2. Step 2: Convert to fraction form
    98,601.68/136,068.36 = 56,159.12/x
  3. Step 3: Cross multiply
    98,601.68x = 136,068.36 × 56,159.12
  4. Step 4: Simplify right side
    98,601.68x = 7,641,479,357.44
  5. Step 5: Solve for x
    x = 7,641,479,357.44/98,601.68
  6. Step 6: Final answer
    x = 77,498.47

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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.