Home / 145,204.24-200,381.08-81,547.60

Finding the Fourth Proportional to 145,204.24, 200,381.08 and 81,547.60

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Solution

The fourth proportional to 145,204.24, 200,381.08 and 81,547.60 is: 112,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,204.24 : 200,381.08 = 81,547.60 : x
  2. Step 2: Convert to fraction form
    145,204.24/200,381.08 = 81,547.60/x
  3. Step 3: Cross multiply
    145,204.24x = 200,381.08 × 81,547.60
  4. Step 4: Simplify right side
    145,204.24x = 16,340,596,159.41
  5. Step 5: Solve for x
    x = 16,340,596,159.41/145,204.24
  6. Step 6: Final answer
    x = 112,535.25

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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.