Home / 112,656.69-155,473.75-64,913.13

Finding the Fourth Proportional to 112,656.69, 155,473.75 and 64,913.13

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Solution

The fourth proportional to 112,656.69, 155,473.75 and 64,913.13 is: 89,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,656.69 : 155,473.75 = 64,913.13 : x
  2. Step 2: Convert to fraction form
    112,656.69/155,473.75 = 64,913.13/x
  3. Step 3: Cross multiply
    112,656.69x = 155,473.75 × 64,913.13
  4. Step 4: Simplify right side
    112,656.69x = 10,092,287,745.34
  5. Step 5: Solve for x
    x = 10,092,287,745.34/112,656.69
  6. Step 6: Final answer
    x = 89,584.45

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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.