Home / 115,210.10-172,815.15-48,628.10

Finding the Fourth Proportional to 115,210.10, 172,815.15 and 48,628.10

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Solution

The fourth proportional to 115,210.10, 172,815.15 and 48,628.10 is: 72,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,210.10 : 172,815.15 = 48,628.10 : x
  2. Step 2: Convert to fraction form
    115,210.10/172,815.15 = 48,628.10/x
  3. Step 3: Cross multiply
    115,210.10x = 172,815.15 × 48,628.10
  4. Step 4: Simplify right side
    115,210.10x = 8,403,672,395.72
  5. Step 5: Solve for x
    x = 8,403,672,395.72/115,210.10
  6. Step 6: Final answer
    x = 72,942.15

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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.