Home / 154,275.55-212,814.58-89,737.52

Finding the Fourth Proportional to 154,275.55, 212,814.58 and 89,737.52

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Solution

The fourth proportional to 154,275.55, 212,814.58 and 89,737.52 is: 123,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,275.55 : 212,814.58 = 89,737.52 : x
  2. Step 2: Convert to fraction form
    154,275.55/212,814.58 = 89,737.52/x
  3. Step 3: Cross multiply
    154,275.55x = 212,814.58 × 89,737.52
  4. Step 4: Simplify right side
    154,275.55x = 19,097,452,579.77
  5. Step 5: Solve for x
    x = 19,097,452,579.77/154,275.55
  6. Step 6: Final answer
    x = 123,787.94

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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.