Home / 111,312.36-153,607.68-63,556.38

Finding the Fourth Proportional to 111,312.36, 153,607.68 and 63,556.38

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Solution

The fourth proportional to 111,312.36, 153,607.68 and 63,556.38 is: 87,705.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,312.36 : 153,607.68 = 63,556.38 : x
  2. Step 2: Convert to fraction form
    111,312.36/153,607.68 = 63,556.38/x
  3. Step 3: Cross multiply
    111,312.36x = 153,607.68 × 63,556.38
  4. Step 4: Simplify right side
    111,312.36x = 9,762,748,081.00
  5. Step 5: Solve for x
    x = 9,762,748,081.00/111,312.36
  6. Step 6: Final answer
    x = 87,705.88

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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.