Home / 145,981.42-218,822.99-92,712.26

Finding the Fourth Proportional to 145,981.42, 218,822.99 and 92,712.26

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Solution

The fourth proportional to 145,981.42, 218,822.99 and 92,712.26 is: 138,973.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,981.42 : 218,822.99 = 92,712.26 : x
  2. Step 2: Convert to fraction form
    145,981.42/218,822.99 = 92,712.26/x
  3. Step 3: Cross multiply
    145,981.42x = 218,822.99 × 92,712.26
  4. Step 4: Simplify right side
    145,981.42x = 20,287,574,026.35
  5. Step 5: Solve for x
    x = 20,287,574,026.35/145,981.42
  6. Step 6: Final answer
    x = 138,973.67

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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.