Home / 108,939.04-163,418.64-42,384.16

Finding the Fourth Proportional to 108,939.04, 163,418.64 and 42,384.16

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Solution

The fourth proportional to 108,939.04, 163,418.64 and 42,384.16 is: 63,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,939.04 : 163,418.64 = 42,384.16 : x
  2. Step 2: Convert to fraction form
    108,939.04/163,418.64 = 42,384.16/x
  3. Step 3: Cross multiply
    108,939.04x = 163,418.64 × 42,384.16
  4. Step 4: Simplify right side
    108,939.04x = 6,926,361,784.74
  5. Step 5: Solve for x
    x = 6,926,361,784.74/108,939.04
  6. Step 6: Final answer
    x = 63,580.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.