Home / 109,687.18-151,368.78-59,386.18

Finding the Fourth Proportional to 109,687.18, 151,368.78 and 59,386.18

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Solution

The fourth proportional to 109,687.18, 151,368.78 and 59,386.18 is: 81,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,687.18 : 151,368.78 = 59,386.18 : x
  2. Step 2: Convert to fraction form
    109,687.18/151,368.78 = 59,386.18/x
  3. Step 3: Cross multiply
    109,687.18x = 151,368.78 × 59,386.18
  4. Step 4: Simplify right side
    109,687.18x = 8,989,213,615.46
  5. Step 5: Solve for x
    x = 8,989,213,615.46/109,687.18
  6. Step 6: Final answer
    x = 81,953.18

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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.