Home / 158,790.06-219,130.50-86,192.91

Finding the Fourth Proportional to 158,790.06, 219,130.50 and 86,192.91

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Solution

The fourth proportional to 158,790.06, 219,130.50 and 86,192.91 is: 118,946.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,790.06 : 219,130.50 = 86,192.91 : x
  2. Step 2: Convert to fraction form
    158,790.06/219,130.50 = 86,192.91/x
  3. Step 3: Cross multiply
    158,790.06x = 219,130.50 × 86,192.91
  4. Step 4: Simplify right side
    158,790.06x = 18,887,495,787.98
  5. Step 5: Solve for x
    x = 18,887,495,787.98/158,790.06
  6. Step 6: Final answer
    x = 118,946.34

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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.