Home / 141,370.32-212,124.69-66,498.09

Finding the Fourth Proportional to 141,370.32, 212,124.69 and 66,498.09

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Solution

The fourth proportional to 141,370.32, 212,124.69 and 66,498.09 is: 99,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,370.32 : 212,124.69 = 66,498.09 : x
  2. Step 2: Convert to fraction form
    141,370.32/212,124.69 = 66,498.09/x
  3. Step 3: Cross multiply
    141,370.32x = 212,124.69 × 66,498.09
  4. Step 4: Simplify right side
    141,370.32x = 14,105,886,726.84
  5. Step 5: Solve for x
    x = 14,105,886,726.84/141,370.32
  6. Step 6: Final answer
    x = 99,779.69

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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.