Home / 107,342.48-161,070.42-78,002.84

Finding the Fourth Proportional to 107,342.48, 161,070.42 and 78,002.84

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Solution

The fourth proportional to 107,342.48, 161,070.42 and 78,002.84 is: 117,045.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,342.48 : 161,070.42 = 78,002.84 : x
  2. Step 2: Convert to fraction form
    107,342.48/161,070.42 = 78,002.84/x
  3. Step 3: Cross multiply
    107,342.48x = 161,070.42 × 78,002.84
  4. Step 4: Simplify right side
    107,342.48x = 12,563,950,199.99
  5. Step 5: Solve for x
    x = 12,563,950,199.99/107,342.48
  6. Step 6: Final answer
    x = 117,045.46

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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.