Home / 112,122.34-154,730.03-61,134.64

Finding the Fourth Proportional to 112,122.34, 154,730.03 and 61,134.64

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Solution

The fourth proportional to 112,122.34, 154,730.03 and 61,134.64 is: 84,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,122.34 : 154,730.03 = 61,134.64 : x
  2. Step 2: Convert to fraction form
    112,122.34/154,730.03 = 61,134.64/x
  3. Step 3: Cross multiply
    112,122.34x = 154,730.03 × 61,134.64
  4. Step 4: Simplify right side
    112,122.34x = 9,459,364,681.24
  5. Step 5: Solve for x
    x = 9,459,364,681.24/112,122.34
  6. Step 6: Final answer
    x = 84,366.46

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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.