Home / 101,561.15-140,152.66-56,238.16

Finding the Fourth Proportional to 101,561.15, 140,152.66 and 56,238.16

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Solution

The fourth proportional to 101,561.15, 140,152.66 and 56,238.16 is: 77,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,561.15 : 140,152.66 = 56,238.16 : x
  2. Step 2: Convert to fraction form
    101,561.15/140,152.66 = 56,238.16/x
  3. Step 3: Cross multiply
    101,561.15x = 140,152.66 × 56,238.16
  4. Step 4: Simplify right side
    101,561.15x = 7,881,927,805.65
  5. Step 5: Solve for x
    x = 7,881,927,805.65/101,561.15
  6. Step 6: Final answer
    x = 77,607.71

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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.