Home / 154,557.90-213,297.93-86,570.91

Finding the Fourth Proportional to 154,557.90, 213,297.93 and 86,570.91

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Solution

The fourth proportional to 154,557.90, 213,297.93 and 86,570.91 is: 119,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557.90 : 213,297.93 = 86,570.91 : x
  2. Step 2: Convert to fraction form
    154,557.90/213,297.93 = 86,570.91/x
  3. Step 3: Cross multiply
    154,557.90x = 213,297.93 × 86,570.91
  4. Step 4: Simplify right side
    154,557.90x = 18,465,395,901.22
  5. Step 5: Solve for x
    x = 18,465,395,901.22/154,557.90
  6. Step 6: Final answer
    x = 119,472.35

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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.