Home / 103,501.20-155,251.80-98,580.45

Finding the Fourth Proportional to 103,501.20, 155,251.80 and 98,580.45

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Solution

The fourth proportional to 103,501.20, 155,251.80 and 98,580.45 is: 147,870.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,501.20 : 155,251.80 = 98,580.45 : x
  2. Step 2: Convert to fraction form
    103,501.20/155,251.80 = 98,580.45/x
  3. Step 3: Cross multiply
    103,501.20x = 155,251.80 × 98,580.45
  4. Step 4: Simplify right side
    103,501.20x = 15,304,792,307.31
  5. Step 5: Solve for x
    x = 15,304,792,307.31/103,501.20
  6. Step 6: Final answer
    x = 147,870.68

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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.