Home / 103,095.24-154,547.70-71,520.20

Finding the Fourth Proportional to 103,095.24, 154,547.70 and 71,520.20

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Solution

The fourth proportional to 103,095.24, 154,547.70 and 71,520.20 is: 107,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,095.24 : 154,547.70 = 71,520.20 : x
  2. Step 2: Convert to fraction form
    103,095.24/154,547.70 = 71,520.20/x
  3. Step 3: Cross multiply
    103,095.24x = 154,547.70 × 71,520.20
  4. Step 4: Simplify right side
    103,095.24x = 11,053,282,413.54
  5. Step 5: Solve for x
    x = 11,053,282,413.54/103,095.24
  6. Step 6: Final answer
    x = 107,214.28

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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.