Home / 145,854.18-201,260.61-81,307.58

Finding the Fourth Proportional to 145,854.18, 201,260.61 and 81,307.58

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Solution

The fourth proportional to 145,854.18, 201,260.61 and 81,307.58 is: 112,194.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,854.18 : 201,260.61 = 81,307.58 : x
  2. Step 2: Convert to fraction form
    145,854.18/201,260.61 = 81,307.58/x
  3. Step 3: Cross multiply
    145,854.18x = 201,260.61 × 81,307.58
  4. Step 4: Simplify right side
    145,854.18x = 16,364,012,142.12
  5. Step 5: Solve for x
    x = 16,364,012,142.12/145,854.18
  6. Step 6: Final answer
    x = 112,194.33

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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.