Home / 286,037.07-429,124.97-86,345.52

Finding the Fourth Proportional to 286,037.07, 429,124.97 and 86,345.52

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Solution

The fourth proportional to 286,037.07, 429,124.97 and 86,345.52 is: 129,539.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,037.07 : 429,124.97 = 86,345.52 : x
  2. Step 2: Convert to fraction form
    286,037.07/429,124.97 = 86,345.52/x
  3. Step 3: Cross multiply
    286,037.07x = 429,124.97 × 86,345.52
  4. Step 4: Simplify right side
    286,037.07x = 37,053,018,679.63
  5. Step 5: Solve for x
    x = 37,053,018,679.63/286,037.07
  6. Step 6: Final answer
    x = 129,539.22

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1.5x scale

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.