Home / 153,030.76-211,182.26-85,045.58

Finding the Fourth Proportional to 153,030.76, 211,182.26 and 85,045.58

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Solution

The fourth proportional to 153,030.76, 211,182.26 and 85,045.58 is: 117,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,030.76 : 211,182.26 = 85,045.58 : x
  2. Step 2: Convert to fraction form
    153,030.76/211,182.26 = 85,045.58/x
  3. Step 3: Cross multiply
    153,030.76x = 211,182.26 × 85,045.58
  4. Step 4: Simplify right side
    153,030.76x = 17,960,117,787.41
  5. Step 5: Solve for x
    x = 17,960,117,787.41/153,030.76
  6. Step 6: Final answer
    x = 117,362.80

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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.