Home / 141,029.70-211,345.63-77,878.25

Finding the Fourth Proportional to 141,029.70, 211,345.63 and 77,878.25

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Solution

The fourth proportional to 141,029.70, 211,345.63 and 77,878.25 is: 116,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,029.70 : 211,345.63 = 77,878.25 : x
  2. Step 2: Convert to fraction form
    141,029.70/211,345.63 = 77,878.25/x
  3. Step 3: Cross multiply
    141,029.70x = 211,345.63 × 77,878.25
  4. Step 4: Simplify right side
    141,029.70x = 16,459,227,809.55
  5. Step 5: Solve for x
    x = 16,459,227,809.55/141,029.70
  6. Step 6: Final answer
    x = 116,707.53

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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.