Home / 145,916.80-201,364.20-85,474.51

Finding the Fourth Proportional to 145,916.80, 201,364.20 and 85,474.51

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Solution

The fourth proportional to 145,916.80, 201,364.20 and 85,474.51 is: 117,954.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,916.80 : 201,364.20 = 85,474.51 : x
  2. Step 2: Convert to fraction form
    145,916.80/201,364.20 = 85,474.51/x
  3. Step 3: Cross multiply
    145,916.80x = 201,364.20 × 85,474.51
  4. Step 4: Simplify right side
    145,916.80x = 17,211,506,326.54
  5. Step 5: Solve for x
    x = 17,211,506,326.54/145,916.80
  6. Step 6: Final answer
    x = 117,954.25

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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.