Home / 152,715.02-210,742.76-84,731.72

Finding the Fourth Proportional to 152,715.02, 210,742.76 and 84,731.72

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Solution

The fourth proportional to 152,715.02, 210,742.76 and 84,731.72 is: 116,927.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,715.02 : 210,742.76 = 84,731.72 : x
  2. Step 2: Convert to fraction form
    152,715.02/210,742.76 = 84,731.72/x
  3. Step 3: Cross multiply
    152,715.02x = 210,742.76 × 84,731.72
  4. Step 4: Simplify right side
    152,715.02x = 17,856,596,532.35
  5. Step 5: Solve for x
    x = 17,856,596,532.35/152,715.02
  6. Step 6: Final answer
    x = 116,927.57

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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.