Home / 202,030.98-278,801.55-111,386.58

Finding the Fourth Proportional to 202,030.98, 278,801.55 and 111,386.58

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Solution

The fourth proportional to 202,030.98, 278,801.55 and 111,386.58 is: 153,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,030.98 : 278,801.55 = 111,386.58 : x
  2. Step 2: Convert to fraction form
    202,030.98/278,801.55 = 111,386.58/x
  3. Step 3: Cross multiply
    202,030.98x = 278,801.55 × 111,386.58
  4. Step 4: Simplify right side
    202,030.98x = 31,054,751,153.20
  5. Step 5: Solve for x
    x = 31,054,751,153.20/202,030.98
  6. Step 6: Final answer
    x = 153,712.82

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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.