Home / 111,276.23-153,553.93-70,985.66

Finding the Fourth Proportional to 111,276.23, 153,553.93 and 70,985.66

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Solution

The fourth proportional to 111,276.23, 153,553.93 and 70,985.66 is: 97,955.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,276.23 : 153,553.93 = 70,985.66 : x
  2. Step 2: Convert to fraction form
    111,276.23/153,553.93 = 70,985.66/x
  3. Step 3: Cross multiply
    111,276.23x = 153,553.93 × 70,985.66
  4. Step 4: Simplify right side
    111,276.23x = 10,900,127,250.74
  5. Step 5: Solve for x
    x = 10,900,127,250.74/111,276.23
  6. Step 6: Final answer
    x = 97,955.58

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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.