Home / 112,368.19-155,068.63-61,381.62

Finding the Fourth Proportional to 112,368.19, 155,068.63 and 61,381.62

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Solution

The fourth proportional to 112,368.19, 155,068.63 and 61,381.62 is: 84,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,368.19 : 155,068.63 = 61,381.62 : x
  2. Step 2: Convert to fraction form
    112,368.19/155,068.63 = 61,381.62/x
  3. Step 3: Cross multiply
    112,368.19x = 155,068.63 × 61,381.62
  4. Step 4: Simplify right side
    112,368.19x = 9,518,363,742.79
  5. Step 5: Solve for x
    x = 9,518,363,742.79/112,368.19
  6. Step 6: Final answer
    x = 84,706.93

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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.