Home / 112,249.36-154,903.80-61,948

Finding the Fourth Proportional to 112,249.36, 154,903.80 and 61,948

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Solution

The fourth proportional to 112,249.36, 154,903.80 and 61,948 is: 85,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,249.36 : 154,903.80 = 61,948 : x
  2. Step 2: Convert to fraction form
    112,249.36/154,903.80 = 61,948/x
  3. Step 3: Cross multiply
    112,249.36x = 154,903.80 × 61,948
  4. Step 4: Simplify right side
    112,249.36x = 9,595,980,602.40
  5. Step 5: Solve for x
    x = 9,595,980,602.40/112,249.36
  6. Step 6: Final answer
    x = 85,488.07

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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.