Home / 160,464.31-221,444.12-87,870.26

Finding the Fourth Proportional to 160,464.31, 221,444.12 and 87,870.26

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Solution

The fourth proportional to 160,464.31, 221,444.12 and 87,870.26 is: 121,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,464.31 : 221,444.12 = 87,870.26 : x
  2. Step 2: Convert to fraction form
    160,464.31/221,444.12 = 87,870.26/x
  3. Step 3: Cross multiply
    160,464.31x = 221,444.12 × 87,870.26
  4. Step 4: Simplify right side
    160,464.31x = 19,458,353,173.16
  5. Step 5: Solve for x
    x = 19,458,353,173.16/160,464.31
  6. Step 6: Final answer
    x = 121,262.81

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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.