Home / 109,880.49-151,583.85-71,130.84

Finding the Fourth Proportional to 109,880.49, 151,583.85 and 71,130.84

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Solution

The fourth proportional to 109,880.49, 151,583.85 and 71,130.84 is: 98,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,880.49 : 151,583.85 = 71,130.84 : x
  2. Step 2: Convert to fraction form
    109,880.49/151,583.85 = 71,130.84/x
  3. Step 3: Cross multiply
    109,880.49x = 151,583.85 × 71,130.84
  4. Step 4: Simplify right side
    109,880.49x = 10,782,286,580.93
  5. Step 5: Solve for x
    x = 10,782,286,580.93/109,880.49
  6. Step 6: Final answer
    x = 98,127.40

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1.5x scale

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.