Home / 145,012.50-200,117.31-88,435.62

Finding the Fourth Proportional to 145,012.50, 200,117.31 and 88,435.62

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Solution

The fourth proportional to 145,012.50, 200,117.31 and 88,435.62 is: 122,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,012.50 : 200,117.31 = 88,435.62 : x
  2. Step 2: Convert to fraction form
    145,012.50/200,117.31 = 88,435.62/x
  3. Step 3: Cross multiply
    145,012.50x = 200,117.31 × 88,435.62
  4. Step 4: Simplify right side
    145,012.50x = 17,697,498,382.58
  5. Step 5: Solve for x
    x = 17,697,498,382.58/145,012.50
  6. Step 6: Final answer
    x = 122,041.19

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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.