Home / 145,400.32-200,637.14-80,859.10

Finding the Fourth Proportional to 145,400.32, 200,637.14 and 80,859.10

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Solution

The fourth proportional to 145,400.32, 200,637.14 and 80,859.10 is: 111,577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,400.32 : 200,637.14 = 80,859.10 : x
  2. Step 2: Convert to fraction form
    145,400.32/200,637.14 = 80,859.10/x
  3. Step 3: Cross multiply
    145,400.32x = 200,637.14 × 80,859.10
  4. Step 4: Simplify right side
    145,400.32x = 16,223,338,566.97
  5. Step 5: Solve for x
    x = 16,223,338,566.97/145,400.32
  6. Step 6: Final answer
    x = 111,577.05

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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.