Home / 191,901.35-287,378.98-120,647.22

Finding the Fourth Proportional to 191,901.35, 287,378.98 and 120,647.22

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Solution

The fourth proportional to 191,901.35, 287,378.98 and 120,647.22 is: 180,673.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,901.35 : 287,378.98 = 120,647.22 : x
  2. Step 2: Convert to fraction form
    191,901.35/287,378.98 = 120,647.22/x
  3. Step 3: Cross multiply
    191,901.35x = 287,378.98 × 120,647.22
  4. Step 4: Simplify right side
    191,901.35x = 34,671,475,090.99
  5. Step 5: Solve for x
    x = 34,671,475,090.99/191,901.35
  6. Step 6: Final answer
    x = 180,673.43

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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.