Home / 159,547.69-220,172.86-86,951.16

Finding the Fourth Proportional to 159,547.69, 220,172.86 and 86,951.16

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Solution

The fourth proportional to 159,547.69, 220,172.86 and 86,951.16 is: 119,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,547.69 : 220,172.86 = 86,951.16 : x
  2. Step 2: Convert to fraction form
    159,547.69/220,172.86 = 86,951.16/x
  3. Step 3: Cross multiply
    159,547.69x = 220,172.86 × 86,951.16
  4. Step 4: Simplify right side
    159,547.69x = 19,144,285,360.14
  5. Step 5: Solve for x
    x = 19,144,285,360.14/159,547.69
  6. Step 6: Final answer
    x = 119,990.99

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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.