Home / 103,685.04-155,521.08-53,750.16

Finding the Fourth Proportional to 103,685.04, 155,521.08 and 53,750.16

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Solution

The fourth proportional to 103,685.04, 155,521.08 and 53,750.16 is: 80,621.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,685.04 : 155,521.08 = 53,750.16 : x
  2. Step 2: Convert to fraction form
    103,685.04/155,521.08 = 53,750.16/x
  3. Step 3: Cross multiply
    103,685.04x = 155,521.08 × 53,750.16
  4. Step 4: Simplify right side
    103,685.04x = 8,359,282,933.37
  5. Step 5: Solve for x
    x = 8,359,282,933.37/103,685.04
  6. Step 6: Final answer
    x = 80,621.88

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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.