Home / 104,061.16-143,545.93-65,808.91

Finding the Fourth Proportional to 104,061.16, 143,545.93 and 65,808.91

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Solution

The fourth proportional to 104,061.16, 143,545.93 and 65,808.91 is: 90,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,061.16 : 143,545.93 = 65,808.91 : x
  2. Step 2: Convert to fraction form
    104,061.16/143,545.93 = 65,808.91/x
  3. Step 3: Cross multiply
    104,061.16x = 143,545.93 × 65,808.91
  4. Step 4: Simplify right side
    104,061.16x = 9,446,601,188.24
  5. Step 5: Solve for x
    x = 9,446,601,188.24/104,061.16
  6. Step 6: Final answer
    x = 90,779.32

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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.