Home / 109,684.63-151,356.49-61,931.35

Finding the Fourth Proportional to 109,684.63, 151,356.49 and 61,931.35

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Solution

The fourth proportional to 109,684.63, 151,356.49 and 61,931.35 is: 85,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,684.63 : 151,356.49 = 61,931.35 : x
  2. Step 2: Convert to fraction form
    109,684.63/151,356.49 = 61,931.35/x
  3. Step 3: Cross multiply
    109,684.63x = 151,356.49 × 61,931.35
  4. Step 4: Simplify right side
    109,684.63x = 9,373,711,756.96
  5. Step 5: Solve for x
    x = 9,373,711,756.96/109,684.63
  6. Step 6: Final answer
    x = 85,460.58

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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.