Home / 102,359.87-141,253.02-57,035.51

Finding the Fourth Proportional to 102,359.87, 141,253.02 and 57,035.51

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Solution

The fourth proportional to 102,359.87, 141,253.02 and 57,035.51 is: 78,706.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,359.87 : 141,253.02 = 57,035.51 : x
  2. Step 2: Convert to fraction form
    102,359.87/141,253.02 = 57,035.51/x
  3. Step 3: Cross multiply
    102,359.87x = 141,253.02 × 57,035.51
  4. Step 4: Simplify right side
    102,359.87x = 8,056,437,328.48
  5. Step 5: Solve for x
    x = 8,056,437,328.48/102,359.87
  6. Step 6: Final answer
    x = 78,706.99

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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.