Home / 112,322.04-155,012.58-64,590.36

Finding the Fourth Proportional to 112,322.04, 155,012.58 and 64,590.36

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Solution

The fourth proportional to 112,322.04, 155,012.58 and 64,590.36 is: 89,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,322.04 : 155,012.58 = 64,590.36 : x
  2. Step 2: Convert to fraction form
    112,322.04/155,012.58 = 64,590.36/x
  3. Step 3: Cross multiply
    112,322.04x = 155,012.58 × 64,590.36
  4. Step 4: Simplify right side
    112,322.04x = 10,012,318,346.73
  5. Step 5: Solve for x
    x = 10,012,318,346.73/112,322.04
  6. Step 6: Final answer
    x = 89,139.39

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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.