Home / 145,226.80-200,403.28-83,968.36

Finding the Fourth Proportional to 145,226.80, 200,403.28 and 83,968.36

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Solution

The fourth proportional to 145,226.80, 200,403.28 and 83,968.36 is: 115,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,226.80 : 200,403.28 = 83,968.36 : x
  2. Step 2: Convert to fraction form
    145,226.80/200,403.28 = 83,968.36/x
  3. Step 3: Cross multiply
    145,226.80x = 200,403.28 × 83,968.36
  4. Step 4: Simplify right side
    145,226.80x = 16,827,533,657.66
  5. Step 5: Solve for x
    x = 16,827,533,657.66/145,226.80
  6. Step 6: Final answer
    x = 115,870.72

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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.