Home / 154,478.43-213,011.64-134,155.94

Finding the Fourth Proportional to 154,478.43, 213,011.64 and 134,155.94

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Solution

The fourth proportional to 154,478.43, 213,011.64 and 134,155.94 is: 184,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,478.43 : 213,011.64 = 134,155.94 : x
  2. Step 2: Convert to fraction form
    154,478.43/213,011.64 = 134,155.94/x
  3. Step 3: Cross multiply
    154,478.43x = 213,011.64 × 134,155.94
  4. Step 4: Simplify right side
    154,478.43x = 28,576,775,730.08
  5. Step 5: Solve for x
    x = 28,576,775,730.08/154,478.43
  6. Step 6: Final answer
    x = 184,988.78

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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.