Home / 103,219.02-154,828.78-28,340.20

Finding the Fourth Proportional to 103,219.02, 154,828.78 and 28,340.20

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Solution

The fourth proportional to 103,219.02, 154,828.78 and 28,340.20 is: 42,510.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,219.02 : 154,828.78 = 28,340.20 : x
  2. Step 2: Convert to fraction form
    103,219.02/154,828.78 = 28,340.20/x
  3. Step 3: Cross multiply
    103,219.02x = 154,828.78 × 28,340.20
  4. Step 4: Simplify right side
    103,219.02x = 4,387,878,590.96
  5. Step 5: Solve for x
    x = 4,387,878,590.96/103,219.02
  6. Step 6: Final answer
    x = 42,510.37

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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.