Home / 152,838.90-210,931.02-84,869.10

Finding the Fourth Proportional to 152,838.90, 210,931.02 and 84,869.10

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Solution

The fourth proportional to 152,838.90, 210,931.02 and 84,869.10 is: 117,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,838.90 : 210,931.02 = 84,869.10 : x
  2. Step 2: Convert to fraction form
    152,838.90/210,931.02 = 84,869.10/x
  3. Step 3: Cross multiply
    152,838.90x = 210,931.02 × 84,869.10
  4. Step 4: Simplify right side
    152,838.90x = 17,901,525,829.48
  5. Step 5: Solve for x
    x = 17,901,525,829.48/152,838.90
  6. Step 6: Final answer
    x = 117,126.76

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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.