Home / 159,362.12-219,870.04-90,440.16

Finding the Fourth Proportional to 159,362.12, 219,870.04 and 90,440.16

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Solution

The fourth proportional to 159,362.12, 219,870.04 and 90,440.16 is: 124,779.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,362.12 : 219,870.04 = 90,440.16 : x
  2. Step 2: Convert to fraction form
    159,362.12/219,870.04 = 90,440.16/x
  3. Step 3: Cross multiply
    159,362.12x = 219,870.04 × 90,440.16
  4. Step 4: Simplify right side
    159,362.12x = 19,885,081,596.81
  5. Step 5: Solve for x
    x = 19,885,081,596.81/159,362.12
  6. Step 6: Final answer
    x = 124,779.22

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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.