Home / 91,075.16-136,698.06-56,083.16

Finding the Fourth Proportional to 91,075.16, 136,698.06 and 56,083.16

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Solution

The fourth proportional to 91,075.16, 136,698.06 and 56,083.16 is: 84,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,075.16 : 136,698.06 = 56,083.16 : x
  2. Step 2: Convert to fraction form
    91,075.16/136,698.06 = 56,083.16/x
  3. Step 3: Cross multiply
    91,075.16x = 136,698.06 × 56,083.16
  4. Step 4: Simplify right side
    91,075.16x = 7,666,459,170.67
  5. Step 5: Solve for x
    x = 7,666,459,170.67/91,075.16
  6. Step 6: Final answer
    x = 84,177.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.