Home / 103,430.30-142,752.39-60,986.30

Finding the Fourth Proportional to 103,430.30, 142,752.39 and 60,986.30

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Solution

The fourth proportional to 103,430.30, 142,752.39 and 60,986.30 is: 84,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430.30 : 142,752.39 = 60,986.30 : x
  2. Step 2: Convert to fraction form
    103,430.30/142,752.39 = 60,986.30/x
  3. Step 3: Cross multiply
    103,430.30x = 142,752.39 × 60,986.30
  4. Step 4: Simplify right side
    103,430.30x = 8,705,940,082.26
  5. Step 5: Solve for x
    x = 8,705,940,082.26/103,430.30
  6. Step 6: Final answer
    x = 84,172.05

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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.