Home / 105,428.93-145,492.27-57,682.13

Finding the Fourth Proportional to 105,428.93, 145,492.27 and 57,682.13

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Solution

The fourth proportional to 105,428.93, 145,492.27 and 57,682.13 is: 79,601.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,428.93 : 145,492.27 = 57,682.13 : x
  2. Step 2: Convert to fraction form
    105,428.93/145,492.27 = 57,682.13/x
  3. Step 3: Cross multiply
    105,428.93x = 145,492.27 × 57,682.13
  4. Step 4: Simplify right side
    105,428.93x = 8,392,303,160.47
  5. Step 5: Solve for x
    x = 8,392,303,160.47/105,428.93
  6. Step 6: Final answer
    x = 79,601.52

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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.