Home / 157,981.12-218,018.10-94,355.60

Finding the Fourth Proportional to 157,981.12, 218,018.10 and 94,355.60

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Solution

The fourth proportional to 157,981.12, 218,018.10 and 94,355.60 is: 130,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,981.12 : 218,018.10 = 94,355.60 : x
  2. Step 2: Convert to fraction form
    157,981.12/218,018.10 = 94,355.60/x
  3. Step 3: Cross multiply
    157,981.12x = 218,018.10 × 94,355.60
  4. Step 4: Simplify right side
    157,981.12x = 20,571,228,636.36
  5. Step 5: Solve for x
    x = 20,571,228,636.36/157,981.12
  6. Step 6: Final answer
    x = 130,213.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.