Home / 112,455.54-155,184.05-64,710.60

Finding the Fourth Proportional to 112,455.54, 155,184.05 and 64,710.60

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Solution

The fourth proportional to 112,455.54, 155,184.05 and 64,710.60 is: 89,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,455.54 : 155,184.05 = 64,710.60 : x
  2. Step 2: Convert to fraction form
    112,455.54/155,184.05 = 64,710.60/x
  3. Step 3: Cross multiply
    112,455.54x = 155,184.05 × 64,710.60
  4. Step 4: Simplify right side
    112,455.54x = 10,042,052,565.77
  5. Step 5: Solve for x
    x = 10,042,052,565.77/112,455.54
  6. Step 6: Final answer
    x = 89,297.98

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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.