Home / 103,547.15-155,436.02-53,613.84

Finding the Fourth Proportional to 103,547.15, 155,436.02 and 53,613.84

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Solution

The fourth proportional to 103,547.15, 155,436.02 and 53,613.84 is: 80,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,547.15 : 155,436.02 = 53,613.84 : x
  2. Step 2: Convert to fraction form
    103,547.15/155,436.02 = 53,613.84/x
  3. Step 3: Cross multiply
    103,547.15x = 155,436.02 × 53,613.84
  4. Step 4: Simplify right side
    103,547.15x = 8,333,521,906.52
  5. Step 5: Solve for x
    x = 8,333,521,906.52/103,547.15
  6. Step 6: Final answer
    x = 80,480.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.