Home / 145,535.90-200,839.23-81,873.74

Finding the Fourth Proportional to 145,535.90, 200,839.23 and 81,873.74

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Solution

The fourth proportional to 145,535.90, 200,839.23 and 81,873.74 is: 112,985.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,535.90 : 200,839.23 = 81,873.74 : x
  2. Step 2: Convert to fraction form
    145,535.90/200,839.23 = 81,873.74/x
  3. Step 3: Cross multiply
    145,535.90x = 200,839.23 × 81,873.74
  4. Step 4: Simplify right side
    145,535.90x = 16,443,457,894.62
  5. Step 5: Solve for x
    x = 16,443,457,894.62/145,535.90
  6. Step 6: Final answer
    x = 112,985.58

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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.