Home / 112,381.02-168,570.90-45,820.88

Finding the Fourth Proportional to 112,381.02, 168,570.90 and 45,820.88

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Solution

The fourth proportional to 112,381.02, 168,570.90 and 45,820.88 is: 68,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,381.02 : 168,570.90 = 45,820.88 : x
  2. Step 2: Convert to fraction form
    112,381.02/168,570.90 = 45,820.88/x
  3. Step 3: Cross multiply
    112,381.02x = 168,570.90 × 45,820.88
  4. Step 4: Simplify right side
    112,381.02x = 7,724,066,980.39
  5. Step 5: Solve for x
    x = 7,724,066,980.39/112,381.02
  6. Step 6: Final answer
    x = 68,731.06

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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.