Home / 105,151.28-157,567.33-77,090.02

Finding the Fourth Proportional to 105,151.28, 157,567.33 and 77,090.02

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Solution

The fourth proportional to 105,151.28, 157,567.33 and 77,090.02 is: 115,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,151.28 : 157,567.33 = 77,090.02 : x
  2. Step 2: Convert to fraction form
    105,151.28/157,567.33 = 77,090.02/x
  3. Step 3: Cross multiply
    105,151.28x = 157,567.33 × 77,090.02
  4. Step 4: Simplify right side
    105,151.28x = 12,146,868,621.05
  5. Step 5: Solve for x
    x = 12,146,868,621.05/105,151.28
  6. Step 6: Final answer
    x = 115,518.03

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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.