Home / 111,120.10-153,307.61-63,338.98

Finding the Fourth Proportional to 111,120.10, 153,307.61 and 63,338.98

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Solution

The fourth proportional to 111,120.10, 153,307.61 and 63,338.98 is: 87,386.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,120.10 : 153,307.61 = 63,338.98 : x
  2. Step 2: Convert to fraction form
    111,120.10/153,307.61 = 63,338.98/x
  3. Step 3: Cross multiply
    111,120.10x = 153,307.61 × 63,338.98
  4. Step 4: Simplify right side
    111,120.10x = 9,710,347,643.64
  5. Step 5: Solve for x
    x = 9,710,347,643.64/111,120.10
  6. Step 6: Final answer
    x = 87,386.06

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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.