Home / 157,983.34-218,018.46-89,999.32

Finding the Fourth Proportional to 157,983.34, 218,018.46 and 89,999.32

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Solution

The fourth proportional to 157,983.34, 218,018.46 and 89,999.32 is: 124,199.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,983.34 : 218,018.46 = 89,999.32 : x
  2. Step 2: Convert to fraction form
    157,983.34/218,018.46 = 89,999.32/x
  3. Step 3: Cross multiply
    157,983.34x = 218,018.46 × 89,999.32
  4. Step 4: Simplify right side
    157,983.34x = 19,621,513,147.45
  5. Step 5: Solve for x
    x = 19,621,513,147.45/157,983.34
  6. Step 6: Final answer
    x = 124,199.89

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1.5x scale

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.