Home / 86,533.86-129,036.96-83,450.14

Finding the Fourth Proportional to 86,533.86, 129,036.96 and 83,450.14

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Solution

The fourth proportional to 86,533.86, 129,036.96 and 83,450.14 is: 124,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,533.86 : 129,036.96 = 83,450.14 : x
  2. Step 2: Convert to fraction form
    86,533.86/129,036.96 = 83,450.14/x
  3. Step 3: Cross multiply
    86,533.86x = 129,036.96 × 83,450.14
  4. Step 4: Simplify right side
    86,533.86x = 10,768,152,377.17
  5. Step 5: Solve for x
    x = 10,768,152,377.17/86,533.86
  6. Step 6: Final answer
    x = 124,438.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.