Home / 286,386.28-429,657.18-86,713.36

Finding the Fourth Proportional to 286,386.28, 429,657.18 and 86,713.36

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Solution

The fourth proportional to 286,386.28, 429,657.18 and 86,713.36 is: 130,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,386.28 : 429,657.18 = 86,713.36 : x
  2. Step 2: Convert to fraction form
    286,386.28/429,657.18 = 86,713.36/x
  3. Step 3: Cross multiply
    286,386.28x = 429,657.18 × 86,713.36
  4. Step 4: Simplify right side
    286,386.28x = 37,257,017,725.92
  5. Step 5: Solve for x
    x = 37,257,017,725.92/286,386.28
  6. Step 6: Final answer
    x = 130,093.58

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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.