Home / 147,636.10-221,454.15-103,312.90

Finding the Fourth Proportional to 147,636.10, 221,454.15 and 103,312.90

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Solution

The fourth proportional to 147,636.10, 221,454.15 and 103,312.90 is: 154,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,636.10 : 221,454.15 = 103,312.90 : x
  2. Step 2: Convert to fraction form
    147,636.10/221,454.15 = 103,312.90/x
  3. Step 3: Cross multiply
    147,636.10x = 221,454.15 × 103,312.90
  4. Step 4: Simplify right side
    147,636.10x = 22,879,070,453.54
  5. Step 5: Solve for x
    x = 22,879,070,453.54/147,636.10
  6. Step 6: Final answer
    x = 154,969.35

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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.