Home / 153,935.36-212,434.40-85,950.03

Finding the Fourth Proportional to 153,935.36, 212,434.40 and 85,950.03

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Solution

The fourth proportional to 153,935.36, 212,434.40 and 85,950.03 is: 118,613.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,935.36 : 212,434.40 = 85,950.03 : x
  2. Step 2: Convert to fraction form
    153,935.36/212,434.40 = 85,950.03/x
  3. Step 3: Cross multiply
    153,935.36x = 212,434.40 × 85,950.03
  4. Step 4: Simplify right side
    153,935.36x = 18,258,742,623.28
  5. Step 5: Solve for x
    x = 18,258,742,623.28/153,935.36
  6. Step 6: Final answer
    x = 118,613.05

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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.