Home / 152,436.48-210,368.64-85,368.96

Finding the Fourth Proportional to 152,436.48, 210,368.64 and 85,368.96

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Solution

The fourth proportional to 152,436.48, 210,368.64 and 85,368.96 is: 117,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,436.48 : 210,368.64 = 85,368.96 : x
  2. Step 2: Convert to fraction form
    152,436.48/210,368.64 = 85,368.96/x
  3. Step 3: Cross multiply
    152,436.48x = 210,368.64 × 85,368.96
  4. Step 4: Simplify right side
    152,436.48x = 17,958,952,013.41
  5. Step 5: Solve for x
    x = 17,958,952,013.41/152,436.48
  6. Step 6: Final answer
    x = 117,812.69

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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.