Home / 105,566.04-157,556.21-91,271.28

Finding the Fourth Proportional to 105,566.04, 157,556.21 and 91,271.28

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Solution

The fourth proportional to 105,566.04, 157,556.21 and 91,271.28 is: 136,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,566.04 : 157,556.21 = 91,271.28 : x
  2. Step 2: Convert to fraction form
    105,566.04/157,556.21 = 91,271.28/x
  3. Step 3: Cross multiply
    105,566.04x = 157,556.21 × 91,271.28
  4. Step 4: Simplify right side
    105,566.04x = 14,380,356,502.29
  5. Step 5: Solve for x
    x = 14,380,356,502.29/105,566.04
  6. Step 6: Final answer
    x = 136,221.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.