Home / 98,685.47-136,180.74-55,663.74

Finding the Fourth Proportional to 98,685.47, 136,180.74 and 55,663.74

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Solution

The fourth proportional to 98,685.47, 136,180.74 and 55,663.74 is: 76,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,685.47 : 136,180.74 = 55,663.74 : x
  2. Step 2: Convert to fraction form
    98,685.47/136,180.74 = 55,663.74/x
  3. Step 3: Cross multiply
    98,685.47x = 136,180.74 × 55,663.74
  4. Step 4: Simplify right side
    98,685.47x = 7,580,329,513.11
  5. Step 5: Solve for x
    x = 7,580,329,513.11/98,685.47
  6. Step 6: Final answer
    x = 76,813.02

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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.