Home / 103,637.85-155,547.90-61,465.20

Finding the Fourth Proportional to 103,637.85, 155,547.90 and 61,465.20

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Solution

The fourth proportional to 103,637.85, 155,547.90 and 61,465.20 is: 92,251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.85 : 155,547.90 = 61,465.20 : x
  2. Step 2: Convert to fraction form
    103,637.85/155,547.90 = 61,465.20/x
  3. Step 3: Cross multiply
    103,637.85x = 155,547.90 × 61,465.20
  4. Step 4: Simplify right side
    103,637.85x = 9,560,782,783.08
  5. Step 5: Solve for x
    x = 9,560,782,783.08/103,637.85
  6. Step 6: Final answer
    x = 92,251.84

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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.