Home / 154,070.39-212,603.31-86,077.93

Finding the Fourth Proportional to 154,070.39, 212,603.31 and 86,077.93

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Solution

The fourth proportional to 154,070.39, 212,603.31 and 86,077.93 is: 118,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,070.39 : 212,603.31 = 86,077.93 : x
  2. Step 2: Convert to fraction form
    154,070.39/212,603.31 = 86,077.93/x
  3. Step 3: Cross multiply
    154,070.39x = 212,603.31 × 86,077.93
  4. Step 4: Simplify right side
    154,070.39x = 18,300,452,434.36
  5. Step 5: Solve for x
    x = 18,300,452,434.36/154,070.39
  6. Step 6: Final answer
    x = 118,779.81

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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.