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Finding the Fourth Proportional to 141,492.69, 212,187.65 and 77,498.34

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Solution

The fourth proportional to 141,492.69, 212,187.65 and 77,498.34 is: 116,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,492.69 : 212,187.65 = 77,498.34 : x
  2. Step 2: Convert to fraction form
    141,492.69/212,187.65 = 77,498.34/x
  3. Step 3: Cross multiply
    141,492.69x = 212,187.65 × 77,498.34
  4. Step 4: Simplify right side
    141,492.69x = 16,444,189,195.07
  5. Step 5: Solve for x
    x = 16,444,189,195.07/141,492.69
  6. Step 6: Final answer
    x = 116,219.36

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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.