Home / 101,653.05-140,285.67-56,330.93

Finding the Fourth Proportional to 101,653.05, 140,285.67 and 56,330.93

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Solution

The fourth proportional to 101,653.05, 140,285.67 and 56,330.93 is: 77,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,653.05 : 140,285.67 = 56,330.93 : x
  2. Step 2: Convert to fraction form
    101,653.05/140,285.67 = 56,330.93/x
  3. Step 3: Cross multiply
    101,653.05x = 140,285.67 × 56,330.93
  4. Step 4: Simplify right side
    101,653.05x = 7,902,421,555.34
  5. Step 5: Solve for x
    x = 7,902,421,555.34/101,653.05
  6. Step 6: Final answer
    x = 77,739.15

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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.