Home / 153,389.47-211,686.20-92,154.40

Finding the Fourth Proportional to 153,389.47, 211,686.20 and 92,154.40

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Solution

The fourth proportional to 153,389.47, 211,686.20 and 92,154.40 is: 127,178.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,389.47 : 211,686.20 = 92,154.40 : x
  2. Step 2: Convert to fraction form
    153,389.47/211,686.20 = 92,154.40/x
  3. Step 3: Cross multiply
    153,389.47x = 211,686.20 × 92,154.40
  4. Step 4: Simplify right side
    153,389.47x = 19,507,814,749.28
  5. Step 5: Solve for x
    x = 19,507,814,749.28/153,389.47
  6. Step 6: Final answer
    x = 127,178.32

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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.