Home / 153,510.06-211,827.48-85,513.92

Finding the Fourth Proportional to 153,510.06, 211,827.48 and 85,513.92

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Solution

The fourth proportional to 153,510.06, 211,827.48 and 85,513.92 is: 118,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,510.06 : 211,827.48 = 85,513.92 : x
  2. Step 2: Convert to fraction form
    153,510.06/211,827.48 = 85,513.92/x
  3. Step 3: Cross multiply
    153,510.06x = 211,827.48 × 85,513.92
  4. Step 4: Simplify right side
    153,510.06x = 18,114,198,178.52
  5. Step 5: Solve for x
    x = 18,114,198,178.52/153,510.06
  6. Step 6: Final answer
    x = 118,000.07

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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.