Home / 153,365.30-211,638.93-86,284.34

Finding the Fourth Proportional to 153,365.30, 211,638.93 and 86,284.34

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Solution

The fourth proportional to 153,365.30, 211,638.93 and 86,284.34 is: 119,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,365.30 : 211,638.93 = 86,284.34 : x
  2. Step 2: Convert to fraction form
    153,365.30/211,638.93 = 86,284.34/x
  3. Step 3: Cross multiply
    153,365.30x = 211,638.93 × 86,284.34
  4. Step 4: Simplify right side
    153,365.30x = 18,261,125,393.36
  5. Step 5: Solve for x
    x = 18,261,125,393.36/153,365.30
  6. Step 6: Final answer
    x = 119,069.47

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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.