Home / 103,685.45-155,528.11-59,281.07

Finding the Fourth Proportional to 103,685.45, 155,528.11 and 59,281.07

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Solution

The fourth proportional to 103,685.45, 155,528.11 and 59,281.07 is: 88,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,685.45 : 155,528.11 = 59,281.07 : x
  2. Step 2: Convert to fraction form
    103,685.45/155,528.11 = 59,281.07/x
  3. Step 3: Cross multiply
    103,685.45x = 155,528.11 × 59,281.07
  4. Step 4: Simplify right side
    103,685.45x = 9,219,872,775.88
  5. Step 5: Solve for x
    x = 9,219,872,775.88/103,685.45
  6. Step 6: Final answer
    x = 88,921.57

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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.