Home / 109,421.35-151,126.02-73,549.08

Finding the Fourth Proportional to 109,421.35, 151,126.02 and 73,549.08

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Solution

The fourth proportional to 109,421.35, 151,126.02 and 73,549.08 is: 101,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,421.35 : 151,126.02 = 73,549.08 : x
  2. Step 2: Convert to fraction form
    109,421.35/151,126.02 = 73,549.08/x
  3. Step 3: Cross multiply
    109,421.35x = 151,126.02 × 73,549.08
  4. Step 4: Simplify right side
    109,421.35x = 11,115,179,735.06
  5. Step 5: Solve for x
    x = 11,115,179,735.06/109,421.35
  6. Step 6: Final answer
    x = 101,581.45

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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.