Home / 98,557.04-135,848.94-77,009.12

Finding the Fourth Proportional to 98,557.04, 135,848.94 and 77,009.12

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Solution

The fourth proportional to 98,557.04, 135,848.94 and 77,009.12 is: 106,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,557.04 : 135,848.94 = 77,009.12 : x
  2. Step 2: Convert to fraction form
    98,557.04/135,848.94 = 77,009.12/x
  3. Step 3: Cross multiply
    98,557.04x = 135,848.94 × 77,009.12
  4. Step 4: Simplify right side
    98,557.04x = 10,461,607,322.33
  5. Step 5: Solve for x
    x = 10,461,607,322.33/98,557.04
  6. Step 6: Final answer
    x = 106,147.74

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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.