Home / 153,935.90-212,429.32-85,953.93

Finding the Fourth Proportional to 153,935.90, 212,429.32 and 85,953.93

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Solution

The fourth proportional to 153,935.90, 212,429.32 and 85,953.93 is: 118,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,935.90 : 212,429.32 = 85,953.93 : x
  2. Step 2: Convert to fraction form
    153,935.90/212,429.32 = 85,953.93/x
  3. Step 3: Cross multiply
    153,935.90x = 212,429.32 × 85,953.93
  4. Step 4: Simplify right side
    153,935.90x = 18,259,134,901.23
  5. Step 5: Solve for x
    x = 18,259,134,901.23/153,935.90
  6. Step 6: Final answer
    x = 118,615.18

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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.