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Finding the Fourth Proportional to 117,445.29, 162,006.71 and 74,955.93

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Solution

The fourth proportional to 117,445.29, 162,006.71 and 74,955.93 is: 103,395.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,445.29 : 162,006.71 = 74,955.93 : x
  2. Step 2: Convert to fraction form
    117,445.29/162,006.71 = 74,955.93/x
  3. Step 3: Cross multiply
    117,445.29x = 162,006.71 × 74,955.93
  4. Step 4: Simplify right side
    117,445.29x = 12,143,362,991.65
  5. Step 5: Solve for x
    x = 12,143,362,991.65/117,445.29
  6. Step 6: Final answer
    x = 103,395.92

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1.5x scale

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.