Home / 111,415.35-153,762.90-61,124.07

Finding the Fourth Proportional to 111,415.35, 153,762.90 and 61,124.07

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Solution

The fourth proportional to 111,415.35, 153,762.90 and 61,124.07 is: 84,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,415.35 : 153,762.90 = 61,124.07 : x
  2. Step 2: Convert to fraction form
    111,415.35/153,762.90 = 61,124.07/x
  3. Step 3: Cross multiply
    111,415.35x = 153,762.90 × 61,124.07
  4. Step 4: Simplify right side
    111,415.35x = 9,398,614,263.00
  5. Step 5: Solve for x
    x = 9,398,614,263.00/111,415.35
  6. Step 6: Final answer
    x = 84,356.55

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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.