Home / 112,973.85-155,898.63-61,985.43

Finding the Fourth Proportional to 112,973.85, 155,898.63 and 61,985.43

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Solution

The fourth proportional to 112,973.85, 155,898.63 and 61,985.43 is: 85,536.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,973.85 : 155,898.63 = 61,985.43 : x
  2. Step 2: Convert to fraction form
    112,973.85/155,898.63 = 61,985.43/x
  3. Step 3: Cross multiply
    112,973.85x = 155,898.63 × 61,985.43
  4. Step 4: Simplify right side
    112,973.85x = 9,663,443,616.96
  5. Step 5: Solve for x
    x = 9,663,443,616.96/112,973.85
  6. Step 6: Final answer
    x = 85,536.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.