Home / 117,283.41-161,931.15-74,899.35

Finding the Fourth Proportional to 117,283.41, 161,931.15 and 74,899.35

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Solution

The fourth proportional to 117,283.41, 161,931.15 and 74,899.35 is: 103,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,283.41 : 161,931.15 = 74,899.35 : x
  2. Step 2: Convert to fraction form
    117,283.41/161,931.15 = 74,899.35/x
  3. Step 3: Cross multiply
    117,283.41x = 161,931.15 × 74,899.35
  4. Step 4: Simplify right side
    117,283.41x = 12,128,537,879.75
  5. Step 5: Solve for x
    x = 12,128,537,879.75/117,283.41
  6. Step 6: Final answer
    x = 103,412.22

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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.