Home / 124,319.24-171,748.02-100,404.40

Finding the Fourth Proportional to 124,319.24, 171,748.02 and 100,404.40

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Solution

The fourth proportional to 124,319.24, 171,748.02 and 100,404.40 is: 138,709.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,319.24 : 171,748.02 = 100,404.40 : x
  2. Step 2: Convert to fraction form
    124,319.24/171,748.02 = 100,404.40/x
  3. Step 3: Cross multiply
    124,319.24x = 171,748.02 × 100,404.40
  4. Step 4: Simplify right side
    124,319.24x = 17,244,256,899.29
  5. Step 5: Solve for x
    x = 17,244,256,899.29/124,319.24
  6. Step 6: Final answer
    x = 138,709.48

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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.