Home / 142,070.16-213,097.44-85,895.19

Finding the Fourth Proportional to 142,070.16, 213,097.44 and 85,895.19

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Solution

The fourth proportional to 142,070.16, 213,097.44 and 85,895.19 is: 128,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,070.16 : 213,097.44 = 85,895.19 : x
  2. Step 2: Convert to fraction form
    142,070.16/213,097.44 = 85,895.19/x
  3. Step 3: Cross multiply
    142,070.16x = 213,097.44 × 85,895.19
  4. Step 4: Simplify right side
    142,070.16x = 18,304,045,097.31
  5. Step 5: Solve for x
    x = 18,304,045,097.31/142,070.16
  6. Step 6: Final answer
    x = 128,838.07

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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.