Home / 118,302.90-163,257.55-64,587.30

Finding the Fourth Proportional to 118,302.90, 163,257.55 and 64,587.30

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Solution

The fourth proportional to 118,302.90, 163,257.55 and 64,587.30 is: 89,130.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,302.90 : 163,257.55 = 64,587.30 : x
  2. Step 2: Convert to fraction form
    118,302.90/163,257.55 = 64,587.30/x
  3. Step 3: Cross multiply
    118,302.90x = 163,257.55 × 64,587.30
  4. Step 4: Simplify right side
    118,302.90x = 10,544,364,359.12
  5. Step 5: Solve for x
    x = 10,544,364,359.12/118,302.90
  6. Step 6: Final answer
    x = 89,130.23

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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.