Home / 103,365.16-154,840.13-47,127.90

Finding the Fourth Proportional to 103,365.16, 154,840.13 and 47,127.90

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Solution

The fourth proportional to 103,365.16, 154,840.13 and 47,127.90 is: 70,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,365.16 : 154,840.13 = 47,127.90 : x
  2. Step 2: Convert to fraction form
    103,365.16/154,840.13 = 47,127.90/x
  3. Step 3: Cross multiply
    103,365.16x = 154,840.13 × 47,127.90
  4. Step 4: Simplify right side
    103,365.16x = 7,297,290,280.45
  5. Step 5: Solve for x
    x = 7,297,290,280.45/103,365.16
  6. Step 6: Final answer
    x = 70,597.20

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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.