Home / 103,242.95-154,831.62-70,175.51

Finding the Fourth Proportional to 103,242.95, 154,831.62 and 70,175.51

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Solution

The fourth proportional to 103,242.95, 154,831.62 and 70,175.51 is: 105,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,242.95 : 154,831.62 = 70,175.51 : x
  2. Step 2: Convert to fraction form
    103,242.95/154,831.62 = 70,175.51/x
  3. Step 3: Cross multiply
    103,242.95x = 154,831.62 × 70,175.51
  4. Step 4: Simplify right side
    103,242.95x = 10,865,387,123.47
  5. Step 5: Solve for x
    x = 10,865,387,123.47/103,242.95
  6. Step 6: Final answer
    x = 105,240.96

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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.