Home / 118,394.61-163,382.51-64,678.25

Finding the Fourth Proportional to 118,394.61, 163,382.51 and 64,678.25

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Solution

The fourth proportional to 118,394.61, 163,382.51 and 64,678.25 is: 89,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,394.61 : 163,382.51 = 64,678.25 : x
  2. Step 2: Convert to fraction form
    118,394.61/163,382.51 = 64,678.25/x
  3. Step 3: Cross multiply
    118,394.61x = 163,382.51 × 64,678.25
  4. Step 4: Simplify right side
    118,394.61x = 10,567,293,687.10
  5. Step 5: Solve for x
    x = 10,567,293,687.10/118,394.61
  6. Step 6: Final answer
    x = 89,254.85

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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.