Home / 105,031.77-144,943.83-57,285.12

Finding the Fourth Proportional to 105,031.77, 144,943.83 and 57,285.12

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Solution

The fourth proportional to 105,031.77, 144,943.83 and 57,285.12 is: 79,053.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,031.77 : 144,943.83 = 57,285.12 : x
  2. Step 2: Convert to fraction form
    105,031.77/144,943.83 = 57,285.12/x
  3. Step 3: Cross multiply
    105,031.77x = 144,943.83 × 57,285.12
  4. Step 4: Simplify right side
    105,031.77x = 8,303,124,694.81
  5. Step 5: Solve for x
    x = 8,303,124,694.81/105,031.77
  6. Step 6: Final answer
    x = 79,053.46

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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.