Home / 145,681.50-218,521.95-45,850.42

Finding the Fourth Proportional to 145,681.50, 218,521.95 and 45,850.42

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Solution

The fourth proportional to 145,681.50, 218,521.95 and 45,850.42 is: 68,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,681.50 : 218,521.95 = 45,850.42 : x
  2. Step 2: Convert to fraction form
    145,681.50/218,521.95 = 45,850.42/x
  3. Step 3: Cross multiply
    145,681.50x = 218,521.95 × 45,850.42
  4. Step 4: Simplify right side
    145,681.50x = 10,019,323,287.93
  5. Step 5: Solve for x
    x = 10,019,323,287.93/145,681.50
  6. Step 6: Final answer
    x = 68,775.53

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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.