Home / 114,075.18-157,259.07-78,208.38

Finding the Fourth Proportional to 114,075.18, 157,259.07 and 78,208.38

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Solution

The fourth proportional to 114,075.18, 157,259.07 and 78,208.38 is: 107,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,075.18 : 157,259.07 = 78,208.38 : x
  2. Step 2: Convert to fraction form
    114,075.18/157,259.07 = 78,208.38/x
  3. Step 3: Cross multiply
    114,075.18x = 157,259.07 × 78,208.38
  4. Step 4: Simplify right side
    114,075.18x = 12,298,977,105.01
  5. Step 5: Solve for x
    x = 12,298,977,105.01/114,075.18
  6. Step 6: Final answer
    x = 107,814.66

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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.