Home / 156,670.30-235,005.45-77,938.30

Finding the Fourth Proportional to 156,670.30, 235,005.45 and 77,938.30

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Solution

The fourth proportional to 156,670.30, 235,005.45 and 77,938.30 is: 116,907.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,670.30 : 235,005.45 = 77,938.30 : x
  2. Step 2: Convert to fraction form
    156,670.30/235,005.45 = 77,938.30/x
  3. Step 3: Cross multiply
    156,670.30x = 235,005.45 × 77,938.30
  4. Step 4: Simplify right side
    156,670.30x = 18,315,925,263.74
  5. Step 5: Solve for x
    x = 18,315,925,263.74/156,670.30
  6. Step 6: Final answer
    x = 116,907.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.