Home / 112,280.69-154,947.63-61,293.45

Finding the Fourth Proportional to 112,280.69, 154,947.63 and 61,293.45

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Solution

The fourth proportional to 112,280.69, 154,947.63 and 61,293.45 is: 84,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,280.69 : 154,947.63 = 61,293.45 : x
  2. Step 2: Convert to fraction form
    112,280.69/154,947.63 = 61,293.45/x
  3. Step 3: Cross multiply
    112,280.69x = 154,947.63 × 61,293.45
  4. Step 4: Simplify right side
    112,280.69x = 9,497,274,784.01
  5. Step 5: Solve for x
    x = 9,497,274,784.01/112,280.69
  6. Step 6: Final answer
    x = 84,585.11

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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.