Home / 105,106.82-157,566.47-38,531.40

Finding the Fourth Proportional to 105,106.82, 157,566.47 and 38,531.40

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Solution

The fourth proportional to 105,106.82, 157,566.47 and 38,531.40 is: 57,762.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,106.82 : 157,566.47 = 38,531.40 : x
  2. Step 2: Convert to fraction form
    105,106.82/157,566.47 = 38,531.40/x
  3. Step 3: Cross multiply
    105,106.82x = 157,566.47 × 38,531.40
  4. Step 4: Simplify right side
    105,106.82x = 6,071,256,784.94
  5. Step 5: Solve for x
    x = 6,071,256,784.94/105,106.82
  6. Step 6: Final answer
    x = 57,762.73

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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.